Zinzino

Zinzino - Collagen Boozt Flex Kit

If you're looking to support your skin's structure and hydration from the inside out, the Collagen Boozt Flex Kit offers a convenient, flexible way to build collagen nutrition into your daily routine. Each sachet is a berry-flavoured powder that stirs easily into water, a smoothie, or yoghurt, making it straightforward to use without disrupting what you already do.

  • May suit adults looking to support skin elasticity, hydration, and appearance through daily nutrition
  • Contains 8,000 mg of hydrolysed marine collagen peptides per serving
  • Includes hyaluronic acid, vitamin C, biotin, zinc, and copper alongside postbiotics
  • Designed as a 10-day cycle, with sachets sized for one per day
  • Available as a kit with multiple boxes to support ongoing use


Price: £102.00
Was £144.00 Save 29%
Buy On Official Site

Affiliate link: you may be redirected to the brand partner site.

What Is It?

The Zinzino Collagen Boozt Flex Kit is a bundled supply of Collagen Boozt Flex, Zinzino's marine collagen powder supplement. Each box contains 10 individual sachets (12.8 g each), with each sachet providing a single daily dose designed to be taken over a 10-day period.

The formula centres on hydrolysed marine collagen peptides sourced from FOS-certified fish (cod, haddock, and pollock). Hydrolysed collagen has been broken down into smaller peptides, which are more readily absorbed than whole collagen protein. The product pairs this with hyaluronic acid and a range of micronutrients that play recognised roles in skin function, including vitamin C, biotin, zinc, and copper.

It sits within Zinzino's Skin Nutrition category and is positioned as a complement to topical skincare rather than a replacement for it, supporting the skin's underlying structure and moisture levels through dietary supplementation.

The kit format makes it practical for anyone who wants to maintain consistent daily use across multiple cycles rather than purchasing individual boxes.

How To Use It

  1. Take one sachet per day.
  2. Mix the contents into 500 ml of water, or stir into a smoothie, yoghurt, or shake.
  3. Use for 10 consecutive days per box.
  4. Do not exceed the recommended daily dose.

Adults only. Consult your doctor before use if you are pregnant or breastfeeding. Store at room temperature in a dark, dry place, away from children.

Whats In It?

Collagen Boozt Flex is a formulated powder supplement. The key active ingredients per daily dose (one 12.8 g sachet) are:

  • Hydrolysed marine collagen peptides (8,000 mg): Types I and III collagen derived from FOS-certified fish. Broken down for improved bioavailability; provides amino acids including glycine, proline, and hydroxyproline relevant to the body's collagen synthesis.
  • Hyaluronic acid (120 mg): A naturally occurring polysaccharide known for its capacity to attract and retain moisture in the skin, contributing to a hydrated and supple appearance.
  • Vitamin C (120.8 mg / 151% NRV): Provided as sodium ascorbate and via acerola cherry extract. Contributes to normal collagen formation for the normal function of the skin, and to the protection of cells from oxidative stress.
  • Plenibiotic™ postbiotic (Lactobacillus casei subsp. casei 327): A postbiotic (non-living bacterial components) included for its role in supporting a balanced gut microbiome; presented here as part of a gut-to-skin approach.
  • Bilberry extract (150 mg): Rich in naturally occurring compounds that contribute to the product's colour and flavour profile.
  • Rice bran ceramides (12.5 mg): Natural lipids derived from rice bran, included for their role in supporting skin moisture and smoothness.
  • L-Glutathione (100 mg): A naturally occurring tripeptide that complements the antioxidant ingredients in the formula alongside vitamin C, zinc, and copper.
  • Biotin (0.035 mg / 70% NRV): Contributes to the maintenance of normal skin.
  • Zinc (3 mg / 30% NRV): Contributes to the maintenance of normal skin and to the protection of cells from oxidative stress.
  • Copper (0.15 mg / 15% NRV): Supports normal skin pigmentation.
  • L-Arginine (625 mg) and L-Glycine (625 mg): Amino acids that contribute to the product's overall amino acid profile.

Each sachet contains 36 kcal, 8.2 g of protein, and no added sugar. Sweetened with steviol glycosides from stevia.

Contains fish. Not suitable for those with fish allergies.

Why We Recommend It

Collagen Boozt Flex stands out within the ingestible collagen category for several practical reasons. The dose of 8,000 mg of hydrolysed marine collagen per serving is meaningful, and the use of FOS-certified fish as the source adds a layer of traceability. Marine collagen is generally considered to have high bioavailability relative to other collagen sources due to its smaller peptide size.

The formula is not simply a collagen supplement with added vitamin C. It brings together hyaluronic acid at a functional dose (120 mg), postbiotics via Plenibiotic™, ceramides from rice bran, and glutathione, creating a broader formulation designed to address skin hydration, oxidative stress, and gut-skin interaction in a single daily serving.

The sachet format is well-suited to consistent use. The powder dissolves easily and is not restricted to water, which removes a common barrier to daily compliance. The berry flavour and stevia sweetening keep it palatable without added sugar.

The kit format provides a multi-box supply, which is appropriate given that ingestible collagen supplements typically require consistent, sustained use over weeks to months before changes in skin appearance become apparent.

What To Expect

Collagen Boozt Flex is a berry-flavoured powder with a light, palatable taste. The sachet mixes readily into cold water or other liquids without clumping. There is no strong aftertaste, and the zero-sugar formulation means it does not taste overly sweet.

In terms of outcomes, ingestible collagen supplements generally need to be used consistently over an extended period before visible changes to skin elasticity or hydration are likely to be noticed. Results vary between individuals and depend on factors including age, existing skin condition, diet, and hydration. The product is not designed to deliver immediate or rapid changes.

The vitamin C, zinc, and copper content contribute to recognised biological functions including collagen formation and cell protection from oxidative stress. Hyaluronic acid supports moisture retention in the skin. These are evidence-based mechanisms, though individual results from supplementation will differ.

This is a food supplement and should be used alongside a varied, balanced diet and a healthy lifestyle. It is not a substitute for medical treatment or professional skincare advice.

Frequently Asked Questions

What does the Collagen Boozt Flex Kit include?
The kit contains multiple boxes of Collagen Boozt Flex, each with 10 individual sachets (12.8 g per sachet). The exact quantity depends on the purchasing option selected: the Start Kit includes two boxes, while the Prepaid Kit includes eight boxes plus one free. Each box covers a 10-day cycle at one sachet per day.
Why is marine collagen used rather than bovine or other sources?
Marine collagen is derived from fish skin and scales and is generally considered to have a smaller peptide size than bovine or porcine collagen, which may improve its absorption. The collagen in this product comes from FOS-certified cod, haddock, and pollock.
Can I mix the powder into something other than water?
Yes. While the recommended use is one sachet in 500 ml of water, the powder can also be stirred into smoothies, yoghurt, or shakes. It should not be mixed with hot liquids as this may affect the ingredient integrity.
Is this product suitable if I have a fish allergy?
No. Collagen Boozt Flex contains hydrolysed marine collagen derived from fish (cod, haddock, pollock) and is not suitable for anyone with a fish allergy or sensitivity.
How long does it take to notice a difference?
Ingestible collagen supplements generally require consistent daily use over a number of weeks to months before changes to skin appearance are likely to be noticeable. Individual results will vary depending on age, skin type, lifestyle, and other factors. This is not a fast-acting product.
Can I take this alongside other Zinzino supplements?
Collagen Boozt Flex is a food supplement. If you are already taking other supplements or medications, it is advisable to consult your GP or a healthcare professional before adding any new supplement to your routine, particularly if doses of shared micronutrients such as vitamin C, zinc, or copper may overlap.
Is this product suitable during pregnancy or breastfeeding?
Zinzino advises consulting your doctor before taking this product if you are pregnant or breastfeeding. It should not be used as a substitute for medical guidance during these periods.
How does Collagen Boozt Flex differ from Collagen Boozt (the liquid version)?
The key difference is format. Collagen Boozt is a ready-to-drink liquid (46 ml shots), while Collagen Boozt Flex is a powder sachet designed to be mixed into a liquid of your choice. The Flex format offers more flexibility in how and when you take it and is well-suited to those who prefer to incorporate it into an existing drink or meal rather than taking a standalone shot.

Interested in learning more?

Explore the full product details, pricing, and latest information on the official site to decide whether it is right for you.

Visit Official Product Page